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. 1976 Mar;57(3):400–402. doi: 10.1104/pp.57.3.400

Interactions between Mitochondria and Chloroplasts in Cells

I. Action of Cyanide and of 3-(3,4-Dichlorophenyl)-1,1-dimethylurea on the Spore of Funaria hygrometrica

Daniel Chevallier 1, Roland Douce 1
PMCID: PMC542033  PMID: 16659490

Abstract

The effects of cyanide and 3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU) on photosynthesis and respiration of intact chlorophyllic moss (Funaria hygrometrica) spore was investigated. Thirty micromolar cyanide strongly inhibited dark respiration, was without effect on photosynthesis at high light intensities (above the saturation plateau values), and stimulated photosynthesis at low light intensities (below the saturation plateau values). Three hundred nanomolar DCMU inhibited the photosynthesis and was without effect, even under light conditions, on the dark respiration. It seems likely, therefore, that in the chlorophyllic moss spore the cytochrome oxidase pathway is not functioning under high light intensities unless the photosynthesis is inhibited by DCMU.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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